@kishoreg@jfim ,there has a question: when start the controller,broker,server node on the same one server,when i push 100W data to the kafka， and exec the sql "select count(*) from wlf-test " on the web, the total records isn't 100W, but increase very slow, the efficiency is 1000 items/min. Do you know how to increase the efficiency? plz guide me~~~